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gsnap autotune_setup.exe

The application gsnap autotune_setup.exe has been detected as a potentially unwanted program by 6 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The installer uses the InstallMonetizer platform which will donwload and install adware toolbars and other potentially unwanted software offers during setup. The file has been seen being downloaded from bestfreesoftware.com and multiple other hosts.
MD5:
1f269335f4f8ec9403588eb9f6a95719

SHA-1:
d1e13dd8badc3bcf9d28a01ce8b7ccf08b868f7d

SHA-256:
30b3c58bec78e27d6305a1757184d6979997d1635d692fbe74eb4b83f231b912

Scanner detections:
6 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallMonetizer distribution platform to bundle adware.

Analysis date:
4/27/2024 2:20:56 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Trojan.Win32.InstallMonetizer
4.0.3.14226

Dr.Web
Adware.Downware.43
9.0.1.057

ESET NOD32
Win32/InstallMonetizer.AN
8.9392

McAfee
Artemis!1F269335F4F8
5600.7207

Rising Antivirus
NORMAL:Trojan.DL.Script.Agent.am!1595604
23.00.65.14224

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.24.3

File size:
289.6 KB (296,567 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\gsnap autotune_setup.exe

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:xe34CTBkxkRen+0EMknTVUR7DKUUjHPTDX+kVWzA3MWYT+vy4hs:OQjEdnA7DC7fc8vy4hs

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9084

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file gsnap autotune_setup.exe has been seen being distributed by the following 2 URLs.

http://bestfreesoftware.com/install/.../Gsnap Autotune_setup.exe

http://bestfreesoftware.com/apps/.../21982

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